Answer Key

1 a.

18

1 b.

40

2 a.

30

2 b.

10

3 a.

5

3 b.

90

4 a.

80

4 b.

50

5 a.

10

5 b.

12

6 a.

35

6 b.

16

7 a.

80

7 b.

15

8 a.

20

8 b.

60

9 a.

6

9 b.

2

10 a.

10

10 b.

20

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